DNS is like the foundation of your house, without it, the house (your online business) crumbles
To help with understanding the technologies and how they relate to each other, we’ve created a graphic below that simplifies these technologies into an analogy we can all understand, a house. Looking at the graphic below, we can see that your Domain Name (Example.com) would be the plot of land where you build your house. You can’t have a house without a yard, and you can’t have DNS without a name to serve. Now that you have your domain/land, you build your house, and it all starts with the foundation. Build your house on a weak foundation, the house will eventually fall down when the foundation crumbles. It’s the same with DNS – its the next most critical technology in the chain after your domain name is registered.
Once you have your domain name (Plot) and your DNS Provider (Foundation) selected, you can then start to invest in web servers, email, FTP services, API servers and more – Your internet House. All of these services reside within your DNS as part of your domain and are 100% reliant on these services to be operational. For a deeper explanation of DNS we urge you to check out Wikipedia, or a fantastic book by OReilly books called DNS & BIND